نتایج جستجو برای: marine actinomycetes

تعداد نتایج: 95426  

2014
M. A. Jayasri K. Suthindhiran

Marine actinomycetes are potential source for the discovery of novel compounds and enzymes. Though extensive research on marine actinomycetes is underway globally, the actinomycetes research from Indian marine ecosystem is unexplored and understudied. Hence, the present research is focussed on the screening of bioactive compounds from marine actinomycetes isolated from Indian coastal region. Th...

Journal: :Applied and environmental microbiology 1991
P R Jensen R Dwight W Fenical

Actinomycetes were isolated from near-shore marine sediments collected at 15 island locations throughout the Bahamas. A total of 289 actinomycete colonies were observed, and all but 6 could be assigned to the suprageneric groups actinoplanetes and streptomycetes. A bimodal distribution in the actinomycete population in relation to depth was recorded, with the maximum numbers occurring in the sh...

2014
Rekha Jadon Vyoma Singh Hotam S. Chaudhary

Marine and terrestrial regions are explored from many years and their bioactive compounds are being exploited. As the use of therapeutic novel compounds increases, researchers from all over the world started exploring oceans for bioactive compounds. Actinomycetes, filamentous bacteria have been extensively studied for their therapeutic compounds. They are found to occur in aquatic environments;...

2017
Lokesh Ravi Kannabiran Krishnan

Co-culturing of actinomycetes is a classical approach used to enhance bioactivity. In this study, co-culturing of terrestrial and marine actinomycetes was performed to obtain increased anticancer cytotoxic activity. Crude extract prepared from co-cultured isolates showed increased anticancer activity. Although normal and healthy actinomycetes filament was observed during co-culture, spore forma...

2007
Maloy Kumar Sahu M. Murugan K. Sivakumar T. Thangaradjou L. Kannan

The mean population density of actinomycetes in water samples from eight stations off Little Andaman Island in India ranged from 0.29 x 103 CFU/ml at station 2 (Naval Area) to 0.45 x 103 CFU/ml at station 4 (Chandra Nallah). Density in sediment samples ranged from 1.21 x 103 CFU/g at station 2 (Naval area) to 3.29 x 103 CFU/g at station 6 (Buttler Bay). Forty-one strains were isolated and teste...

2016
Alejandra Prieto-Davó Tiago Dias Sofia E. Gomes Sara Rodrigues Yessica Parera-Valadez Pedro M. Borralho Florbela Pereira Cecilia M. P. Rodrigues Ilda Santos-Sanches Susana P. Gaudêncio

Marine-derived actinomycetes have demonstrated an ability to produce novel compounds with medically relevant biological activity. Studying the diversity and biogeographical patterns of marine actinomycetes offers an opportunity to identify genera that are under environmental pressures, which may drive adaptations that yield specific biosynthetic capabilities. The present study describes researc...

Aboulghasem Roohi, Hamed Norouzi, Javad Hamedi, Mojtaba Mohseni,

Actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. A total of 44 strains of actinomycetes were isolated from Caspian Sea sediments at a depth of 5-10 m. Preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. The most potent strains MN2, MN3, MN38, MN39, MN...

2009
Jakeline Trejos Jimenez Mária Šturdíková Ernest Šturdík

Marine invertebrates and a growing number of marine actinomycetes are the sources of novel, bioactive secondary metabolites. This review is presented as a short survey of recent investigations in the marine pharmacology and discovery of new anticancer drugs. The implications of this research towards the development of marine secondary metabolites as a sustainable source of new drugs are discussed.

L-asparaginase is an anti-neoplastic agent used in the chemotherapy of lymphoblastic leukaemia. The present work deals with production of extra-cellular Lasparaginase from marine actinomycetes, using submerged fermentation. Marine actinomycete Streptomyces associated with marine spongeCallyspongia diffusa was isolated using specific ISP medium. Sponge-associated Streptomyces was character...

Introduction: Marine actinomycetes have a great potential to produce unique bioactive compounds due to their special adaptation in the harsh ocean environment. The current study aimed to isolate anti-cancer compounds producing actinomycetes from sediments of Harra forests of the Persian Gulf and investigate their potential as anti-breast cancer metabolites. Methods: In the current study, 40 se...

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